Data center hydroelectric architecture and data center

Abstract

The invention discloses a data center hydroelectric architecture and a data center. The hydroelectric architecture comprises a support, a secondary side pipeline, a liquid drainage main pipeline and a cable bridge. The secondary side pipeline comprises an air conditioner section pipeline and a cabinet section pipeline; the length of the air conditioner section pipeline is smaller than the distance between every two adjacent stand columns in the support. Shut-off valves are arranged at the two ends of the air conditioner section pipeline and the cabinet section pipeline; the air conditioner section pipeline is connected with the liquid drainage main pipeline through a liquid drainage branch pipe, the liquid drainage main pipeline is located below the air conditioner section pipeline, and a liquid drainage valve is arranged on the liquid drainage branch pipe; the secondary side pipeline and the cable bridge are designed in a layered mode, and the cable bridge is located on the upper layer of the secondary side pipeline. The device has the advantages of modularization, high maintenance efficiency, water and electricity separation, high safety and the like.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of data center heat dissipation, and specifically relates to a data center water and electricity architecture and a data center. Background Art

[0002] Liquid cooling has gradually become the mainstream data center heat dissipation technology, mainly including cold plate liquid cooling and immersion liquid cooling. With the maturity of liquid cooling heat dissipation technology, the requirements for the cleanliness of the coolant in indirect liquid cooling heat dissipation such as cold plate liquid cooling are continuously increasing. The primary heat dissipation cycle that directly cools electronic components with the chilled water of the refrigeration system has been difficult to meet the requirements. Using a cleaner coolant to dissipate heat from electronic components has become the current development trend. The coolant is isolated from the chilled water of the primary cycle by a heat exchanger and exchanges heat indirectly. The coolant circulates between the cold plate and the heat exchanger, which is usually referred to as the secondary cycle. For the booming direct liquid cooling heat dissipation technologies such as immersion liquid cooling, dielectric fluid is required to cool electronic components, and a secondary cycle must be adopted.

[0003] The pipeline system of the primary cycle (primary side pipeline system) and the pipeline system of the secondary cycle (secondary side pipeline system) can be installed in the raised floor or above the cabinet. The pipeline systems in China are usually installed in the raised floor. Considering that a large maintenance space is required in the front and back of the IT cabinet, and multiple rows of IT cabinets are usually arranged. For two adjacent rows of cabinets, the back space of the front row of cabinets and the front space of the back row of cabinets overlap. Therefore, part of the pipeline system can be placed under the floor in front of or behind the IT cabinet. Since the primary side pipeline system only needs to be connected to the CDU and the in-row air conditioner, and the number of branch pipes of the in-row air conditioner is small and the pipe diameter is small, while the secondary side pipeline system has connection requirements with both the front and back of the cabinet, and the number of branch pipes is large and the branch pipe diameter is large. Therefore, the primary side pipeline system is installed under the floor in front of or behind the cabinet, while the secondary side pipeline system is placed directly under the cabinet. Once a leak occurs in the secondary side pipeline after the cabinet is deployed, the first choice is to perform on-site maintenance on the pipeline from the side, overcoming the interference of the brackets in the front and back of the cabinet. However, when a leak occurs at the welded joint of the pipeline, on-site maintenance cannot be basically completed, and it is very likely that equipment has to be moved to perform maintenance, which is equivalent to a relocation, and a large amount of coolant in the pipeline needs to be drained, resulting in waste of coolant and a large demand for refilling. That is, the installation and maintenance of the secondary side pipeline system located directly under the cabinet pose great challenges, especially for high-density data centers, which have a large heat dissipation capacity and a large demand for coolant flow, resulting in a large size of the pipeline system. In addition, some data centers adopt the lower power supply method, and the power supply cables also pass through the raised floor under the cabinet. Both water and electricity are located under the floor, posing a potential safety hazard of electric leakage. Therefore, if the secondary side pipeline is installed directly under the cabinet, it will face severe maintainability challenges.

[0004] At present, most liquid-cooled data centers adopt a primary circulation system. The primary-side pipes are usually placed under the floor in the front and back of the cabinets. Some data centers adopt a two-stage circulation system, and the primary side and the secondary side are also placed under the floor in the front and back of the cabinets. Its advantage is easy maintenance, and the disadvantage is that it occupies a large area. The pipe length is usually segmented according to transportation and installation limitations. The length of each pipe segment is generally more than 3m, and multiple main pipes are connected by flanges or welding. The flanges or welded joints of the main pipes are generally not prone to leakage, but the flanges or welded joints of the branch pipes are prone to leakage, and maintenance requires opening the floor above and near the pipes, which is inconvenient for operation. Summary of the Invention

[0005] In view of the technical problems existing in the prior art, the present invention provides a data center water and electricity architecture and a data center with modular design to improve maintainability.

[0006] To solve the above technical problems, the technical solution proposed by the present invention is as follows:

[0007] A data center water and electricity architecture includes a bracket, a secondary-side pipe, a liquid discharge main pipe, and a cable tray;

[0008] The secondary-side pipe includes an air-conditioning section pipe and a cabinet section pipe; the length of the air-conditioning section pipe is less than the distance between adjacent two columns in the bracket; shut-off valves are provided at both ends of the air-conditioning section pipe and the cabinet section pipe;

[0009] The air-conditioning section pipe is connected to the liquid discharge main pipe through a liquid discharge branch pipe. The liquid discharge main pipe is located below the air-conditioning section pipe, and a liquid discharge valve is provided on the liquid discharge branch pipe;

[0010] The secondary-side pipe and the cable tray adopt a layered design, and the cable tray is located above the secondary-side pipe.

[0011] Preferably, the air-conditioning section pipe includes a main pipe and multiple branch pipes. Each branch pipe is located on both sides of the main pipe, facing the front and back of the cabinet.

[0012] Preferably, the ends of the main pipe and the branch pipes are both flange interfaces, and shut-off valves are provided on the branch pipes.

[0013] Preferably, the liquid discharge pipes inside the CDU of the data center and the condensate drain pipes of the in-row air conditioners are both connected to the liquid discharge main pipe.

[0014] Preferably, the sizes of the air-conditioning section pipes are the same, and the sizes of the cabinet section pipes are the same.

[0015] Preferably, each air-conditioning section pipe is a modular air-conditioning section pipe; each cabinet section pipe is a modular cabinet section pipe.

[0016] The present invention also discloses a data center, including IT cabinets, CDU, in-row air conditioners and the above-mentioned data center's water and electricity architecture. A plurality of the IT cabinets are arranged in sequence, and the in-row air conditioners are located between adjacent IT cabinets; the CDU is located at both ends of the plurality of IT cabinets.

[0017] Preferably, the sizes of all the IT cabinets are the same.

[0018] Preferably, the sizes of all the CDU are the same as those of the IT cabinets.

[0019] Preferably, two liquid distributors, one supply and one return, are configured in the front, rear, left and right of each IT cabinet and are installed on the front and back of the in-row air conditioner.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] Through modular, hierarchical design and optimized layout, the present invention significantly improves the maintainability, safety and efficiency of the data center's water and electricity architecture. The specific technical effects are as follows:

[0022] Modular design improves maintainability: The secondary side pipes adopt a segmented design, especially the modular design of the air conditioner section pipes and the cabinet section pipes. When leakage occurs, only the corresponding shut-off valve needs to be closed, and the damaged module can be emptied and replaced without emptying the entire system, reducing the waste of coolant and maintenance time. The length of the air conditioner section pipes is less than the distance between the two columns of the bracket, which is convenient for quick disassembly and replacement, further improving the maintenance efficiency.

[0023] Hierarchical design ensures safety: The secondary side pipes and the cable tray adopt a hierarchical design, with the cable tray located in the upper layer and the secondary side pipes located in the lower layer, realizing the separation of water and electricity, effectively reducing the risks of liquid leakage and conduction and electric shock to personnel, and improving the safety of the system.

[0024] Optimized layout improves space utilization: The layout of the bracket, secondary side pipes, main drain pipes and cable trays is optimized to ensure efficient space utilization without occupying the area outside the projection of the cabinet. The main drain pipes are located below the air conditioner section pipes, and the drain branch pipes are reasonably arranged to facilitate the drainage of liquid by gravity, reducing the complexity of the system.

[0025] Modular assembly improves efficiency: The sizes of the IT cabinets, in-row air conditioners and CDU are uniformly designed, enabling the modular assembly of the bracket, secondary side pipes and cable trays, simplifying the installation and maintenance processes, and improving the overall efficiency and scalability of the system.

[0026] In summary, through modular, hierarchical design and optimized layout, this technical solution significantly improves the maintainability, safety and efficiency of the water and electricity architecture in the data center, providing a strong guarantee for the stable operation of the data center. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the schematic diagram (top view) of the liquid cooling of the cabinet group of the present invention.

[0028] Figure 2 It is the top view of the bracket and the secondary side pipeline in the embodiment of the present invention.

[0029] Figure 3 It is the front view of the water and electricity architecture in the embodiment of the present invention.

[0030] Figure 4 It is the schematic structural diagram of the air-conditioning section pipeline in the embodiment of the present invention.

[0031] Legend: 1. Primary side pipeline; 2. Secondary side pipeline; 3. Air-conditioning section pipeline; 4. Cabinet section pipeline; 5. CDU; 6. In-row air conditioner; 7. IT cabinet; 8. Bracket; 9. Cable tray; 10. Drain valve; 11. Main drain pipeline; 12. Shut-off valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention will be further described below in conjunction with the drawings in the specification and specific embodiments.

[0033] As Figures 1-3 shown, the water and electricity architecture of the data center in the embodiment of the present invention includes a bracket 8, a secondary side pipeline 2, a main drain pipeline 11 and a cable tray 9; the secondary side pipeline 2 includes an air-conditioning section pipeline 3 and a cabinet section pipeline 4; the length of the air-conditioning section pipeline 3 is less than the distance between adjacent columns in the bracket 8; shut-off valves 12 are provided at both ends of the air-conditioning section pipeline 3 and the cabinet section pipeline 4; the air-conditioning section pipeline 3 is connected to the main drain pipeline 11 through a drain branch pipe, the main drain pipeline 11 is located below the air-conditioning section pipeline 3, and a drain valve 10 is provided on the drain branch pipe; the secondary side pipeline 2 and the cable tray 9 adopt a hierarchical design, and the cable tray 9 is located above the secondary side pipeline 2.

[0034] Preliminary design is carried out on the bracket 8, the secondary side pipeline 2, the main drain pipeline 11 and the cable tray 9 according to the size and power consumption of the cabinet. The four cooperate with each other and are considered comprehensively. Specifically:

[0035] For the bracket 8, under the condition of meeting the load-bearing requirement, the bracket 8 is simplified as much as possible to reduce its constraint on each liquid cooling pipeline and the cable tray 9;

[0036] For the secondary side pipeline 2, the design should be carried out by comprehensively considering the liquid cooling requirements, the constraint of the bracket 8 and the maintainability;

[0037] The height of the drainage main pipeline 11 should be lower than the height of all drainage valves 10 in the whole system, so that the liquid to be drained can be discharged only by gravity. The drainage main pipeline 11 should be reasonably equipped with multiple drainage branches connected to the drainage valves 10.

[0038] For power supply, considering the separation of water and electricity and the allowable support height, the cable tray 9 should be placed above the secondary side pipeline 2.

[0039] Specifically, since the secondary side pipe 2 is installed directly below the cabinet, in order to prevent the secondary side pipe 2 from leaking and being unable to be maintained on site, the secondary side pipe 2 is designed to be modular and segmented, especially for the branch pipes that are prone to leakage. Specifically, it includes two specifications of main pipe sections, namely, the air conditioning section pipe 3 with a shorter length and multiple branch pipes adopting a highly integrated design, and the cabinet section pipe 4 with a longer length and no branch pipes, such as Figure 1 and Figure 2 As shown. The length of the air conditioning section pipe 3 is shortened as much as possible, and a shut-off valve 12 is designed at the end of the air conditioning section pipe 3 and the cabinet section pipe 4. When the air conditioning section pipe 3, which is prone to leakage, leaks and it is inconvenient to maintain it on site, the corresponding shut-off valve 12 is closed, and the coolant in the air conditioning section pipe 3 is emptied. It can be quickly disassembled and taken out from the middle of the bracket 8 column for replacement, without emptying the coolant in the adjacent cabinet section pipe 4, avoiding waste of coolant.

[0040] Furthermore, the length of the air conditioning section pipe 3 is shorter than the distance between the two columns of the bracket 8, so that it is easy to replace in case of leakage, and easy maintainability is achieved without occupying the area outside the cabinet projection.

[0041] In addition, by adopting a layered design for the secondary side pipeline 2 and the cable tray 9, the cable tray 9 is located at the upper layer and the secondary side pipeline 2 is located at the lower layer, so as to achieve water-electricity separation and reduce the risk of leakage conduction and electric shock to personnel.

[0042] The embodiment of the present invention further provides a data center, including IT cabinets, CDU, row air conditioners and the water and electricity architecture of the data center as described above, wherein multiple IT cabinets are arranged in sequence, and the row air conditioners are located between adjacent IT cabinets; the CDU is located at both ends of multiple IT cabinets; specifically, in order to improve the modular design level of the bracket 8, the secondary side pipe 2 and the bridge 9, the sizes of the four IT cabinets 7 and the row air conditioners 6 are designed to be the same size; even the size of the CDU 5 can be consistent with that of the IT cabinet 7, thereby realizing the modularization of the bracket 8; since the secondary side pipe 2 adopts a segmented design, the secondary side pipe 2 can also be modularized, that is, the size of each air conditioning section pipe 3 and each cabinet section pipe 4 is exactly the same. The cable bridge 9 can also be segmented according to a given length to achieve modular assembly.

[0043] The present invention can reduce the difficulty of secondary side pipeline installation and maintenance in a data center, especially in a high-density data center, and improve the power supply safety.

[0044] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific embodiments.

[0045] Taking a cabinet group as an example for illustration, a cabinet group includes 4 IT cabinets 7 and 2 CDU units 5. One of the 2 CDU units is in use and the other is in standby. The two sides of the IT cabinet 7 also need to be juxtaposed with the in-row air conditioner 6, as Figure 1 shown.

[0046] This cabinet group adopts a hybrid air-liquid cooling technology. The heat of the main heat-generating components such as the CPU is taken away by efficient liquid cooling, and the heat of the components such as the memory module that are not convenient for liquid cooling is taken away by air cooling.

[0047] The principle of liquid cooling is that the CDU 5 provides relatively low-temperature cooling liquid to the IT cabinet 7 through the secondary side liquid supply pipeline and the liquid supply distributor. After taking away the heat generated by the electronic components, it returns to the CDU 5 through the return liquid distributor and the return secondary side pipeline in sequence. The heat of the cooling liquid is transferred to the chilled water in the primary side pipeline 1 through the heat exchanger inside the CDU.

[0048] Each IT cabinet 7 is configured with a total of two liquid distributors, one for supply and one for return, in the front, back, left, and right directions, and is installed on the front and back of the in-row air conditioner 6.

[0049] Since the secondary side pipeline 2 needs to supply liquid to the front and back of the cabinet, the main supply and return pipes must be stacked vertically. The main pipes are not prone to leakage, but the branch pipe sections are the most likely positions to leak. When a leak occurs at the flange connection of the branch pipe, it can be solved by reinforcement, reconnection, or even replacement of the flange; when a leak occurs at the welded joint of the branch pipe, due to limited operating space, on-site welding is very difficult, and it may be necessary to remove the cabinet directly above the leaking pipe section for maintenance, which is equivalent to a relocation, indicating that the maintainability of the cabinet group is extremely low and greatly reduces the reliability of the cabinet group.

[0050] Therefore, the air conditioner section pipeline 3 and the cabinet section pipeline 4 are segmented, and the length of the air conditioner section pipeline 3 is 494 mm, which is less than the distance between the two columns 8 (580 mm). It can be removed separately for maintenance, and at the same time, a new air conditioner section pipeline 3 can be replaced, and the cabinet group can resume work quickly.

[0051] The air conditioner section pipeline 3 is composed of a main pipe and four branch pipes, and provides two branch pipes for the front and back of the cabinet respectively. The ends of the main pipe and the branch pipes are both flange interfaces, and a shut-off valve is set for each branch pipe. In addition, there are other embodiments of the air conditioner section pipeline 3, such as Figure 4As shown in the figure. Two branch pipes on the same side of the air-conditioning section pipe 3 can be led out from the primary main pipe by one secondary main pipe, and a shut-off valve is provided on the secondary main pipe.

[0052] Drain valves 10 are provided at the bottom of the air-conditioning section pipes 3. The drain valves 10 are connected to the drain main pipe 11 through drain branch pipes. When it is necessary to empty the pipe section, just open the drain valve 10. The drain pipes inside the CDU and the condensate drain pipes of the in-row air conditioners are also connected to the drain main pipe.

[0053] The power supply for the cabinet group is in the under-wiring mode. The cables and the cable tray 9 are located in the raised floor area. To meet the laying requirements of the power supply cables, the size of the cable tray 9 is not less than 500*200 mm (width * height). The cable tray is placed below the cabinets 7 and directly above the secondary side pipes 2, which not only shortens the cable routing length but also realizes the separation of water and electricity.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "assembled", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should be regarded as within the protection scope of the present invention.

Claims

1. A data center's water and electricity architecture, characterized in that, It includes a bracket (8), a secondary side pipeline (2), a main drainage pipeline (11) and a cable tray (9); The secondary side pipeline (2) includes an air-conditioning section pipeline (3) and a cabinet section pipeline (4); the length of the air-conditioning section pipeline (3) is less than the distance between adjacent two columns in the bracket (8); shut-off valves (12) are provided at both ends of the air-conditioning section pipeline (3) and the cabinet section pipeline (4); The air-conditioning section pipeline (3) is connected to the main drainage pipeline (11) through a drainage branch pipe. The main drainage pipeline (11) is located below the air-conditioning section pipeline (3), and a drainage valve (10) is provided on the drainage branch pipe; The secondary side pipeline (2) and the cable tray (9) adopt a layered design, and the cable tray (9) is located in the upper layer of the secondary side pipeline (2).

2. The data center's water and electricity architecture according to claim 1, characterized in that, The air-conditioning section pipeline (3) includes a main pipe and multiple branch pipes. Each of the branch pipes is located on both sides of the main pipe, facing the front and back of the cabinet.

3. The data center water and electricity architecture according to claim 2, characterized in that, The ends of the main pipe and the branch pipes are both flange interfaces, and shut-off valves (12) are provided on each of the branch pipes.

4. The data center's water and electricity architecture according to claim 1 or 2 or 3, characterized in that, The drainage pipe inside the CDU (5) in the data center and the condensate drainage pipe of the in-row air conditioner (6) are both connected to the main drainage pipeline (11).

5. The data center's water and electricity architecture according to claim 1 or 2 or 3, characterized in that, The sizes of the air-conditioning section pipelines (3) are the same, and the sizes of the cabinet section pipelines (4) are the same.

6. The data center water and electricity architecture according to claim 1 or 2 or 3, characterized in that, Each of the air-conditioning section pipelines (3) is a modular air-conditioning section pipeline; each of the cabinet section pipelines (4) is a modular cabinet section pipeline.

7. A data center, comprising IT cabinets (7), a CDU (5) and in-row air conditioners (6), wherein a plurality of the IT cabinets (7) are arranged in sequence, the in-row air conditioners (6) are located between adjacent IT cabinets (7); the CDU (5) is located at both ends of the plurality of IT cabinets (7), and is characterized in that, It further includes the data center water and electricity architecture according to any one of claims 1-6.

8. The data center according to claim 7, characterized in that, The sizes of the IT cabinets (7) are the same.

9. The data center according to claim 8, characterized in that, The sizes of the CDUs (5) are the same as those of the IT cabinets (7).

10. The data center according to claim 7 or 8 or 9, characterized in that, Two liquid distributors, one supply and one return, are arranged in front of, behind, to the left and right of each of the IT cabinets (7), and are installed on the front and back of the in-row air conditioner (6).

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